import 'dart:io';

import 'package:device_info/device_info.dart';
import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:news_getx/config/storage.dart';
import 'package:news_getx/data/services/storage.dart';
import 'package:package_info_plus/package_info_plus.dart';

class ConfigService extends GetxService {
  /// 静态变量
  static ConfigService get to => Get.find();

  // 发布渠道
  static String channel = "xxx";

  // 是否 ios
  static bool isIOS = Platform.isIOS;

  // android 设备信息
  static AndroidDeviceInfo? androidDeviceInfo;

  // ios 设备信息
  static IosDeviceInfo? iosDeviceInfo;

  /// 响应式成员变量
  RxBool isGrayFilter = false.obs;

  /// 成员变量
  bool isFirstOpen = false;
  PackageInfo? _platform;

  Locale locale = Locale("zh", "CN");

  List<Locale> languages = [
    Locale('en', 'US'),
    Locale('zh', 'CN'),
  ];

  /// Getter
  String get version => _platform?.version ?? "-";

  bool get isRelease => bool.fromEnvironment("dart.vm.product");

  @override
  void onInit() async {
    super.onInit();
    isFirstOpen = StorageService.to.getBool(StorageDeviceFirstOpenKey);

    // 加载设备信息
    getPlatform();

    // 读取设备信息
    DeviceInfoPlugin deviceInfoPlugin = DeviceInfoPlugin();
    if (isIOS) {
      iosDeviceInfo = await deviceInfoPlugin.iosInfo;
    } else {
      androidDeviceInfo = await deviceInfoPlugin.androidInfo;
    }
  }

  void changeGrayTheme() {
    isGrayFilter.value = !isGrayFilter.value;
  }

  Future<void> getPlatform() async {
    // 获取包信息
    _platform = await PackageInfo.fromPlatform();
  }

  // 标记用户已打开APP
  Future<bool> saveAlreadyOpen() {
    return StorageService.to.setBool(StorageDeviceFirstOpenKey, false);
  }

  // 初始化语言环境 暂未使用
  void onInitLocale() {
    String langCode = StorageService.to.getString(StorageLanguageCode);
    if (langCode.isEmpty) return;

    int index = languages.indexWhere((element) {
      return element.languageCode == langCode;
    });
    if (index < 0) return;
    locale = languages[index];
  }

  // 改变语言环境
  void onLocaleUpdate(Locale value) {
    locale = value;
    // 更新app的语言
    Get.updateLocale(value);
    StorageService.to.setString(StorageLanguageCode, value.languageCode);
  }
}